Home / 20,102,829.90-30,121,002.45-11,568,281.10

Finding the Fourth Proportional to 20,102,829.90, 30,121,002.45 and 11,568,281.10

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Solution

The fourth proportional to 20,102,829.90, 30,121,002.45 and 11,568,281.10 is: 17,333,292.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102,829.90 : 30,121,002.45 = 11,568,281.10 : x
  2. Step 2: Convert to fraction form
    20,102,829.90/30,121,002.45 = 11,568,281.10/x
  3. Step 3: Cross multiply
    20,102,829.90x = 30,121,002.45 × 11,568,281.10
  4. Step 4: Simplify right side
    20,102,829.90x = 348,448,223,355,388.69
  5. Step 5: Solve for x
    x = 348,448,223,355,388.69/20,102,829.90
  6. Step 6: Final answer
    x = 17,333,292.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.